Of late I'm finding it very hard to get Google maps to work with sound especially in the cars. It seems to be erratic where it might work for a short while or not work at all on occasions.
Looked it up on Google and following instructions have gone to App/Settings/Navigation Settings and no matter what setting I choose it still does not appear to work properly.
Could it be that your phone is bluetooth paired with the car handfree system ? Try turning off bluetooth on your phone. When my phone is connected to the car's handfree I dont hear any google maps sound.
Hey,
I understand this frustration of Google Maps audio issues, happened to me a lot. First, check your phone volume and app permissions which i believe you have done so far. So, If no luck, try updating the app or clearing its cache. If all else fails, a quick reinstall might do the trick. Btw sometimes a restart can also help you with this. Hope that helps!